Capsule or container for compressed or liquefied gases.



R. H."CAMPBELL. CAPSULE 0R CONTAINER FOR COMPRESSED OR LIQUEFIED GASES.

APPLIGATION FILED FEB. 18, 1911. 1,038,285.

Patented Sept. 10, 1912/ 2 SHEETSSHEBT 1.

INVENTOK fTORNEYS R. H. CAMPBELL. CAPSULE OR CONTAINER POE COMPRESSED 0RLIQUBPIED GASES.

APPLICATION FILED FEB.18, 1911. 1,038,285.

Patented Sept. 10, 1912.

2' SHEETS-SHEET 2,.

\NVENTOR ATToR/vms y. M w 7y W YYITNES ES lltAOIBEE/l,HlIl'N'lERCAMPBELL, F EDMONTON, ENG-LAND.

' Specification otter-11ers Patent.

Patented dept. ld, ldlQ.

'- Appfication filed February 18, 1911. Serial No. 609,368.

To all whom it may concern:

Be it known that I, ROBERT HUNTER CAMPBELL, a subject of the Kin ofGreat Britain and Ireland, of Angel Road, Ed-

' nionton, in the county of Middlesex, England, have invented new anduseful Imspace,

provements in Capsules or Containers for Compressed or Liquefied Gases,of which the following is a specification.

This invention relates to capsules, or containers, for compressed, orliquefied, gases, which capsules, or containers, are closed byadevicewhich has to be perforated when gas isto be released from thecapsules, or

containers,and the objectofthis invention is toprovide means whereby theclosure is edccted in a very ready, economical and ellicient way and soalso that when it is de sired to re-use the capsules, or containers,

the perforated closing device can be readily removed and a new one beput in place for closin the capsule, or container, after it is recarged-with compressed, or liquefied,

The inside of the neck of the capsule, or container, to whichthisinvention is ap plied is formed with an annular groove, or

pierced, and provided with projections, or

grooves, and being of a diameter which will allow. of its being insertedinto the neck otthe capsule, or container, so as to rest upon the lower,or inner, surface; or

boundary, of the annular groove, or space,

a passage, or passages,'being left for the admission of gas in charging.

According to this invention the edge of the said disk, or piece, isformed, or thick ened, or an additional ring is, or additional ringsare, provided, so that, when, after char ing, pressure, in the directionof the lengt of the capsule, or container, is exerted upon the saiddisk, orpiece, or upon its edge, or upon the additional ring, or rings,the said disk, or -piece, is pressed which can be cutin the metal of theneck itself, or in a piece fixed thereto, or be.

upon the seat (formed by the lower,sur-' face, or boundaryiof thegroove, or space,). and the n ietal of its edge, or the metal of theadditional ring, or rings, is displaced,

causing the solid metal to spread, flow, or

squirt, inward, and outward, sidewise, so as to enter, and be firmlyheld in, "the said annular groove, or space, and in conjunctionwiththesaid disk, or piece, efiect a tight closure of the capsule, orcontainer.

ljhe annular groove, or space, may be plain, or may, if desired, beundercut, or formed in any way. so as to properly receive, and hold, themetal which has been displaced and caused to spread, flow, or squirt, asaforesaid, and hold the disk, or piece, in position to, form a tightclosure of the capsule, or container. The gas can be admitted, from thecharging machine, at

the top oft-he neck as usual, or it can be admitted by an opening at theside of the neck leading .into the groove, or space, so

that the said opening is closed by the'm'e'tal which fixes the closingpiece, or disk, in

position.

The accompanying drawings represent,

in vertical sections, various ways in which.

thisinvention can be performed.

Figures 1 and 2 show the neck of a capsule in which the metal to beforced into the groove, 'or space, is part of the closing disk,, orpiece, itself. Figs. 3 and 4 show the neck of a capsule in which themetal to be forced into the groove, or space, is separate from theclosing disk, or piece. Figs. 5 and 6 are respectively vertical sectionand broken side elevations of a. cap sule showing another modificationFig. 7

is a plan of the annulus 6 of this modification; Fig, 8 iswa broken sideelevation of another form of capsule with a modified form of theclosure, the latter shown at one end closed and the other end inposition for charging; Figs. '9 and 10; '11 and 12, 18 and 14: arevertical sections of a capsule neck showing different modifications ofthe closure device in charging and sealed positions respectively; andFig..l5 is a modified form of the sealed cap shown in Fig. 14.

In the several figures the neck of the con. tainer, orjcapsule, is"marked 1, the closing "disk, or piece is marked 2, the groove, or

space, to receive the securing metal 18 marked 3 and the seat, againstwhich the said'disk, or piece, makes a closure, is marked 4 and themetal which is pressed into the groove, ofospace, 3 is marked 5.

edge, this metal constituting the metal which is to be pressed into thegroove 3.

-Fig.'1 shows the parts as arranged before charging, and Fig. 2 showsthe disk secured,

in 1ts closing position by forcing the metal of its thickened edge intothe groove 3. The thickened edge of the disk 2 is formed, or

" perforated, to constitute a passage, or passages, for the gas incharging, this assage,

or these passages, being closed w on the pressure is put on the edge ofthe disk to close the capsule. v

In Figs. 3 and 4 the groove is shown made as in Figs. 1 and 2, but themetal 5, which is to be pressed into the groove 3, is separate from thedisk 2. Fig. 3 shows the parts in'the'position before charging and Fig.4 shows the capsule closed.

Figsf5 and 6 show, respectively in the position for charging and in theclosed condition, a capsule with an ordinary recessed neck, the seatingfor the disk 2, being formed ona hard metal annulus 6, resting on'theledge 7 of the recess, in the neck and having a portion 15 projectinginto the neck below the said'ledge 7, the upper part of the neck beingturned over to form the upper part of the groove, or recess, to receivethe securing mietal 5.

Fig.-7 ,shows the annulus 6, separately, the nick '8, being formed in itfor thepassage of'thegas in charging.

Fig. 8 shows a similar arrangement applied to a container with a closureat each end, the parts being shown, at the upper end, in the .positionfor charging and, at the lower end, in the closed position. In this casethe annulus 6 is shown as beingwithout a portion projecting into theneck below the ledge 7 asin Figs. 5 and 6.

Figs. 9 and 10 show a like arrangement, but with the seat 4, formedaround the end of the neck and with the groove, or space, 3, for thesecuring of metal 5, formed by a piece '9, screwed onto'the neck.

j Figs. 11 and'12'show a similar arrangement but with the piece 9secured to the capsule by turning down, over the led e 12 on the piece9, a flange 13, which, an the seat 4, can be formed by cutting a groovein the end of the neck. In these figures the metal piece 5 is made witha recess 14, to receive the disk 2, which is made cup-shaped and thegas, in charging, passes through grooves in the side of the piece 5 andthrough a slot in the sides of the cup-shaped disk.

Figs. 13, 14, and 15 show an arrangement wherein the metal to form theclosing piece 2, and the metal to be forced into the groove,

or space, 3, are made in one, the metal being pressed (as shown in Fig.14) so as to spread into the groove, or space, 3, thedisk, or

portion, 2, to be pierced being formed by displacing or turning out,some ofthe metal, as shown in Fig.- 15. The ways for gas in charging areindicated in the various ar-' rangements at 10. The closing disk, orpiece, 2, is made so that it will allow the gas to pass in charging, forexample, it may be made with a corrugatededge, or with projections, orbe otherwise formed to afford passages, these being closed when thedisk, or piece, is pressed onto its seat on forcing the metal 5, intothe space 3.

In the various arrangements illustrated, the part which forms the seat4,'is of smaller diameter than the upper margin of the groove, or space,3, so as to allow of the introduction of the closing disk, or piece, andthe securing metal 5. The metal 5, can be pressed into the groove, orspace, 3, by any suitable arrangement of. the charging plunger of thecharging machine, for instance, by making the said plunger with a partcorresponding in shape and area, with the upper surface of the metal 5,andindependently movable relatively to the other part, or parts of theplunger, so that the metal 5, can be acted upon by the said movable partto effect theclosure while the other part, or parts, remain in positionto bear on the container, or capsule, and, wherev In Figs. 13, 14, and15, there is indicated,

in dotted lines, at 11, a side passa e which, in either arrangement, canbe use for ad- .mitting gas in charging, instead of forming passages inthe metal piece 5.

Variousother modifications of the device which do not depart from myinvention will readily suggest themselves and I do not limit myself tothose specifically shown. In the followin claims when I speak of arecessed neck I use the expression in a sense broad enough to includeall the modifications shownviz. whether the recess be formed by anoffset in the metalof the capsule neck pro er as in Figs. 1 and 2, or arecess formed etween an independent annu- Ins and the inner face of theneck as in Figs. 5 and 6 or between an external sleeve and the outerface of the neck as Figs. 9-10 Similarly whenI speak of a seat for theclosure disk I usethe expression in a sense broad enough to include'thevarious forms shown-w hether the seat be formed upon 14 and 15) orindependent thereof, as in the remaining figures. 7

/Vith these explanations I claim as my invention 1. A. capsule forcompressed gas, havinga neck with internal lateral recess through whichthe gas passes duringv filling, a perforable disk closure for thedischarge pas- 1 sage in said neck, and a crushable filling andretaining member above the disk and recessed to afiorda fill passageadapted to be crush d into said lateral recess to close the same and toforce saiddiskclosure to its seat and retain the same in itscldsureposition. I

2. A capsule for compressed gas,'having a 30 discharge passage in saidneck, and a crushable filling and retaining member above the diskandrec'essed to afi'ord. a fill passage adapted to be crushed into saidlat eral recess to close the same and to force said disk closure to itsseat and retain the same in its closure position. A

4. A capsule for compressed as, having a discharge outlet, aperforabledisk closure therefor, and crushable means above the disk for closingsaid fill passage and holding said closure disk to its seat after thecapsule has been filled, said .c'rushable means being recessed to afiorda fill passage, substantially as described.

5. A capsule for compressed gas, having a neck internally undercut atits ri id upper edge, a closure disk, a seat for t e closure disk and aclosure ring of soft metal above the disk and-recessed to afiord apassage during filling but crushed into said undercut in the neck, inclosed condition, to force and hold said disk to its seat, substantiallyas described.

' In testimony whereof I have signed my name to this specification inthe presence 55 witnesses.

of two subscr-ibm a UNTER CAMPBELL.

ROBERT Witnesses:

RIrLEY WILSON,

